Data/hora: 16/06/2024 00:54:05

Provedor de dados: | 86
País: | Brazil
Título: | Genetic variability in conilon coffee related to grain attributes in an irrigated crop in the Cerrado
Autores: | Brige,Felipe Augusto Alves; Celestino,Sonia Maria Costa; Amabile,Renato Fernando; Fagioli,Marcelo; Delvico,Francisco Marcos dos Santos; Montalvão,Ana Paula Leite; Sala,Pedro Ivo Aquino Leite.
Data: | 2019-01-01
Ano: | 2019
Palavras-chave: | Coffea canephora; Chemical composition; Genetic diversity; Multivariate analysis.
Resumo: | Abstract: The objective of this work was to quantify the genetic variability of 213 conilon coffee accessions of the Robusta Tropical cultivar, based on chemical characteristics related to the quality of green coffee beans, as well as to identify promising accessions for the breeding program of irrigated conilon coffee in the Brazilian Cerrado. The chemical characteristics evaluated were: protein and caffeine contents, total soluble solids and total lipids, ether extract, pH, and total titratable acidity. The data were subjected to the principal component analysis and cluster analysis based on the similarities observed within the first two principal components using the minimum variance method (Wards) and, as a measure of similarity, the Euclidean distance. The three main components explained 72.64% of the total variation of the data. All characteristics, except pH, were correlated with the first three components. It was possible to separate the genotypes in three clusters, according to the similarities observed in the behavior of the variables. The evaluated accessions present genetic variability regarding the assessed quality characteristics of green coffee beans, and CPAC 160 and CPAC 32 are the most promising for the breeding program of conilon coffee for cultivation under irrigation in the Cerrado.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000102804

Editor:

Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira

Relação: | 10.1590/s1678-3921.pab2019.v54.00358
Formato: | text/html
Fonte: | Pesquisa Agropecuária Brasileira  v.54 2019
Fonte: | info:eu-repo/semantics/openAccess